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CVE-2026-91049

EWWW Image Optimizer <= 8.9.0

Affected
EWWW Image Optimizer <= 8.9.0
Patched in
8.9.1
CVSS
— unscored
CISA KEV
Not listed
Technical details
Software
EWWW Image Optimizer WP plugin
Weakness
Not classified
EPSS · 05 Nov 2026
Unavailable
Public resources
None found

No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.

Description

The EWWW Image Optimizer WordPress plugin before 8.9.1 does not properly sanitize and restrict a value in post content before using it to dynamically load and execute a script in the page, allowing authenticated attackers with author-level access and above to inject arbitrary web scripts that run in the session of any user who views the affected page, including administrators. This is an incomplete fix of CVE-2026-15446: the origin and path restrictions added from 8.7.4 onward were each bypassable, so versions 8.7.4 through 8.9.0 remain affected.

Exploits & detection

No public PoC or detection template found yet.

Timeline

  • Published: 05 Nov 2026
  • Last modified upstream: 05 Nov 2026

Sources & licenses

CVE / CVSS / CWE
NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
Exploitation
CISA KEV (CC0) · EPSS by FIRST.org
References used for the analysis
Analysis, summary and remediation
© VulnCrest

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